From RROCA-info
Pre-War Model Lubrication Chart
Recommended oil and grease for pre-war Rolls-Royce and Bentley models. This is a simplification of the wall chart issued by the Company around 1960; here showing only pre-war models.
| Model | Phantom I | Phantom II | Phantom III | 20HP | 20/25 | 25/30 | Wraith | Derby Bentley 3.5 l | Derby Bentley 4.25 l |
|---|---|---|---|---|---|---|---|---|---|
| Engine | SAE30 | SAE30 | SAE30 | SAE30 | SAE30 | SAE30 | SAE30 | SAE30 | SAE30 |
| Gearbox (Manual) | SAE80/90 | SAE30 | SAE40/50 | SAE80/90 | SAE30 | SAE30 | SAE30 | SAE30 | SAE30 |
| Steering Box | SAE80/90 | SAE80/90 | SAE40/50 | SAE80/90 | SAE40/50 | SAE30 | SAE30 | SAE30 | SAE30 |
| Rear Axle | SAE80/90 | Hypoid SAE90 | Hypoid SAE90 | SAE80/90 | SAE80/90 | Hypoid SAE90 | Hypoid SAE90 | Hypoid SAE90 | Hypoid SAE90 |
| Chassis Oil Tank | SAE30 | SAE30 | SAE30 | SAE30 | SAE30 | SAE30 | SAE30 | ||
| Shock Dampers | SAE20 | SAE20 | SAE20 | SAE20 | SAE20 | SAE20 | SAE20 | SAE20 | SAE20 |
| Front Hub Bearings | Ball Bearing Grease | Ball Bearing Grease | Ball Bearing Grease | Ball Bearing Grease | Ball Bearing Grease | Ball Bearing Grease | Ball Bearing Grease | Ball Bearing Grease | Ball Bearing Grease |
| Rear Hub Bearings | Ball Bearing Grease | Ball Bearing Grease | Ball Bearing Grease | Ball Bearing Grease | Ball Bearing Grease | Ball Bearing Grease | Ball Bearing Grease | Ball Bearing Grease | Ball Bearing Grease |
| Wheel Hub Shells | Flow Type Grease | Flow Type Grease | Flow Type Grease | Flow Type Grease | Ball Bearing Grease | Flow Type Grease | Flow Type Grease | Flow Type Grease | Flow Type Grease |
| Propeller Shaft (Sliding and Universal Joints) | SAE80/90 | Flow Type Grease | Flow Type Grease | SAE80/90 | Flow Type Grease | Flow Type Grease | Flow Type Grease | Flow Type Grease | Flow Type Grease |
| Distributor Lubricator | SAE20 | SAE20 | SAE20 | SAE30 | SAE20 | SAE20 | HMP Grease | SAE20 | SAE20 |
| Contact Breaker Cam | Flow Type Grease | Flow Type Grease | Flow Type Grease | Flow Type Grease | Flow Type Grease | Flow Type Grease | Flow Type Grease | Flow Type Grease | Flow Type Grease |
| Starter Motor Gears | SAE30 | SAE30 | SAE30 | ||||||
| Hand Oiling Joints | SAE20 | SAE20 | SAE20 | SAE20 | SAE20 | SAE20 | SAE20 | SAE20 | SAE20 |
| Water Pump | Water Pump Grease | Water Pump Grease | Water Pump Grease | Water Pump Grease | Water Pump Grease | Water Pump Grease | Water Pump Grease | Water Pump Grease | Water Pump Grease |
| D.W.S. Hydraulic Jacks | X | X |